Radio frequency pulse thawing and heating device and closed-loop control method thereof

Abstract

The present invention provides a radio frequency pulse thawing and heating device and a closed-loop control method thereof. The radio frequency pulse thawing and heating device comprises a radio frequency power output module, a measurement module, a power supply module, an electronically regulated radiation device, a control unit and a heat dissipation system. The electronically regulated radiation device comprises a tuning module, a radiation component and a radiation cavity. A pulse-type thawing and heating method is used to enable thawing of food to be more uniform, at the same time, when different food is thawed by using the pulse method, pulse power duty cycle, peak power, pulse period, etc. can all be regulated, and a problem that uniform thawing of streaky pork, whole chicken, etc.is difficult to be realized technically; the thawing and heating method with peak power control can effectively improve thawing and heating effects of food, and realize balance of fast and uniform thawing and heating of the food; and the closed-loop control of the thawing and heating method can effectively improve speed and uniformity of the thawing and heating of the food.

Description

technical field [0001] The invention relates to the technical field of thawing, in particular to a radio frequency pulse thawing heating device and a closed-loop control method thereof. Background technique [0002] Radio frequency thawing is a new type of thawing method, which uses high-speed changing radio frequency or microwave oscillating electromagnetic fields to heat up the crystal lattice, molecules, ions, etc. in the item to be thawed by violent vibration and rotation, so as to achieve the purpose of rapid thawing. Compared with other thawing methods, the speed of radio frequency thawing is faster, the heating is uniform, and the quality of the items to be thawed is less affected. [0003] The patent document whose publication number is CN109323521A discloses a control method for a thawing device. The control method includes: a radio frequency generation module generates a radio frequency signal; a radio frequency antenna generates radio frequency waves of a corresp...

AI Technical Summary

Problems solved by technology

This solution needs to pass the temperature judgment when thawing, which requires adding a temperature sensor on the thawing device, and the setting of the temperature sensor will increase the complexity of the device, and the temperature sensor cannot completely detect the temperature of the item from the inside to the outside, and the detection temperature is not accurate.

Images